G003758
GC Analysis of Pesticides in Spinach on Equity-1 after SPE using Supelclean™ ENVI-Carb-II/PSA
suitable for GC, application for SPE
About This Item
technique(s)
gas chromatography (GC): suitable
solid phase extraction (SPE): suitable
test parameters
sample preparation: SPE (Solid Phase Extraction)
sample/matrix: 10 g of fresh spinach spiked at 0.2 ppm each pesticide
SPE tube/cartridge: Supelclean ENVI-Carb-II/PSA, 500mg/300mg/6mL (55119-U)
condition: 5 mL acetonitrile:toluene (3:1, v/v)
sample addition: 1 mL concentrated sample extract
elution: 20 mL acetonitrile:toluene (3:1, v/v)
eluate post-treatment: Evaporate eluate to dryness with nitrogen at 40 °C. Reconstitute in 1 mL acetone:hexane (1:1, v/v).
column: Equity-1, 30 m x 0.25 mm I.D., 0.25 μm (28046-U)
oven: 50 °C (5 min), 25 °C/min to 125 °C, 10 °C/min to 30 °C (8 min)
inj. temp.: 200 °C, aux: 325 °C (8 min)
detector: MSD, scan range 45-450 amu
carrier gas: helium, 0.9 mL/min., constant flow mode
injection: 1 μL, splitless (splitter open at 1 min)
liner: 4 mm I.D., single taper
suitability
application for SPE
application(s)
agriculture
food and beverages
Application
Homogenize 10 g of spinach in 10 mL of acetonitrile.
Legal Information
SPE tube or plate
analytical column
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